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\n \n \n\nEvents are triggered in your site’s backend when certain changes occur to your site’s members. You can write event handlers that react to these events. Event handler functions receive data that correspond to the backend event that has occurred. Use event handlers to create custom responses to the events. \n\n> **Note:** Backend events don’t work when previewing your site.\n\n\n## Working with Members Event Handlers\n\nTo add a members event handler, add an **events.js** file to the **Backend** or your site if one does not already exist. All event handler functions for your site are defined in this file. \n\nEvent handler functions are defined using the following pattern:\n```javascript\nexport function _(event) { }\n```\n\nFor example, an event handler that handles the creation of a member looks\nlike this:\n```javascript\nexport function wixMembers_onMemberCreated(event) { }\n```","displayName":"Introduction","slugifyName":"introduction"}],"namespaces":[],"builderTypes":[],"properties":[]}},"reviewStatus":"UNKNOWN","isLocked":false,"metadata":{"packageVersion":"1.0.91"},"resourceMetadata":{"lastModifiedBy":"","sourcePath":"","yamlPath":"","name":"VeloEventsWixMembersV2","yamlTitle":"Wix Members V 2 1 0 0","kind":"VELO"}}

onMemberUpdated( )